/Engine/Source/Runtime/Engine/Public/LocalNotification.h
Schedule a local notification badge at a specific time, inLocalTime specifies the current local time or if UTC time should be used
A unique identifier used to cancel the notification
int32 ScheduleLocalNotificationBadgeAtTime ( const [FDateTime](API\Runtime\Core\Misc\FDateTime) & FireDateTime, bool LocalTime, const [FString](API\Runtime\Core\Containers\FString) & ActivationEvent )